Still Working Past 65? Here’s How to Know If Medicare Beats Your Employer Plan

If you’re still working when you turn 65, it’s easy to assume your employer’s health plan is the safer, cheaper choice, and that Medicare can simply wait. Sometimes that’s true. Often, it isn’t. Whether Medicare or your employer coverage is the better deal depends on a handful of specific factors, and getting the answer wrong can mean overpaying for years or walking straight into a permanent late enrollment penalty.

Do You Even Have to Enroll in Medicare While Working?

It depends entirely on the size of your employer:

• 20 or more employees: Your group plan is usually considered “creditable coverage.” You can typically delay Part B without penalty until your employment or coverage ends.
• Fewer than 20 employees: Medicare usually becomes your primary coverage the moment you turn 65, whether you enroll or not. Delaying Part B here is a common, costly mistake.

Pro Tip: Ask your HR department directly whether your plan is considered primary or secondary to Medicare. Don’t guess.

When Your Employer Plan Might Actually Win

There are real situations where staying on your work plan makes sense:

• Your employer covers most or all of the premium, making it cheaper than Medicare plus a supplement
• Your spouse and family are also covered under the same plan
• You’re close to a pension or retiree benefit milestone tied to your current employment

When Medicare Usually Wins

For a lot of people, Medicare quietly comes out ahead:

• Your share of the employer premium has crept up over the years, while Medicare plus a Medicare Supplement can often cost less
• Your employer plan has a network that doesn’t include your preferred doctors, while Original Medicare is accepted nearly everywhere
• You’re paying for coverage for dependents who could be better served on their own plans

The Overlooked Risk: Assuming You’re Covered When You’re Not

This is where people get burned. Common mistakes include:

1. Assuming any employer plan counts as creditable coverage. Some small-employer and retiree plans don’t count, and Medicare treats you as uninsured for Part B purposes.
2. Waiting too long to ask. Once you separate from your employer, you get a short Special Enrollment Period, typically 8 months, to sign up for Part B without penalty. Miss it, and the penalty is added to your premium every month, for life.
3. Forgetting Part D. If your employer drug coverage isn’t creditable, you can rack up a separate prescription drug penalty even if your medical coverage was fine.

How to Actually Decide

Before you choose, get clear answers to a few questions:

• What does your employer plan actually cost you per month, all in?
• Is your employer plan considered primary or secondary once you turn 65?
• What would a Medicare Supplement or Medicare Advantage plan cost for your specific health needs?
• Are your doctors and prescriptions covered either way?

Bottom line: This isn’t a decision to make from a company memo or a coworker’s opinion. It’s worth a real comparison.

Take Action Before You Assume

Staying on your work plan isn’t automatically the safe choice, and neither is jumping straight to Medicare. The only way to know which one actually saves you money is to compare them side by side, with your real numbers.

Ready to find out which option is right for you? Contact our team for a no-obligation comparison. We’ll walk through your employer plan and your Medicare options together, in plain language, so you can make the decision with confidence.